公开(公告)号：EP1582009A1

公开(公告)日：2005-10-05

申请号：EP03778698.5

申请日：2003-12-29

申请人： Koninklijke Philips Electronics N.V.

发明人： MA, Ni,Philips Electronics China ,  ZHANG, Xuejun,Philips Electronics China ,  CHENG, Jiang,Philips Electronics China

IPC分类号： H04B7/005

CPC分类号： H04W52/221 ,  H04W52/362

摘要： The present invention relates to an adaptive step size method for power control in wireless communication systems and a system for the same. The method includes the steps: obtaining the power control information whose number is previously set in previous power control cycle and that in current power control cycle; Determining the power control step size in current power control cycle according to the obtained power control information whose number is previously set in previous power control cycle and that in current power control cycle. Employing the method to determine a suitable step size in current PC cycle, we can overcome the defect that the change of the PC step size in current wireless communication system is a fixed value, thereby make the power change more smooth, and ensure that wireless communication holds better communication quality.

公开(公告)号：EP1604537A1

公开(公告)日：2005-12-14

申请号：EP04713959.7

申请日：2004-02-24

申请人： Koninklijke Philips Electronics N.V.

发明人： SUN, Li,Philips Electronics China ,  MA, Ni,Philips Electronics China ,  CHENG, Jiang,Philips Electronics China ,  JIA, Qunli,Philips Electronics China ,  ZHANG, Xuejun,Philips Electronics China ,  PAN, Sheng,Philips Electronics China ,  PENG, Fang,Philips Electronics China ,  DU, Yonggang,Philips Electronics China

IPC分类号： H04Q7/38 ,  H04L12/56

CPC分类号： H04W8/18 ,  H04W76/14

摘要： A method for establishing P2P (peer-to-peer) communication in wireless communication networks, comprising steps of: determining whether two user equipments (caller and call) are in the same cell, and computing whether the distance between the two user equipments (UEs) meets the requirement for P2P communication according to the registry information and position information of the caller and the callee; determining whether the two UEs both have P2P communication capability according to the information of the wireless communication system indicating whether the two UEs both have P2P communication capability, when the two UEs are in the same cell and the distance between the two UEs meets the requirement for P2P communication; and allocating direct communication link for the two UEs to start communication when the two UEs both have P2P communication capability.

公开(公告)号：EP1604538A2

公开(公告)日：2005-12-14

申请号：EP04715987.6

申请日：2004-03-01

申请人： Koninklijke Philips Electronics N.V.

发明人： JIA, Qunli,Philips Electronics China ,  MA, Ni,Philips Electronics China ,  SUN, Li,Philips Electronics China ,  ZHANG, Xuejun,Philips Electronics China

IPC分类号： H04Q7/38

CPC分类号： H04W76/14 ,  H04W4/06 ,  H04W8/24 ,  H04W24/00 ,  H04W48/08 ,  H04W92/18

摘要： The present invention provides a wireless network system for establishing peer-to-peer communication between mobile terminals. Upon determining that peer-to-peer communication can be established between two mobile terminal, the wireless network system transmits to each of the mobile terminals information about radio resources used by the other one of the mobile terminals. Each mobile terminal then uses the radio resources information to test the characteristics of a dedicated uplink channel between the other one of the mobile terminals and the network system. Thus, no separate radio channel needs to be allocated for the channel testing. Furthermore, each mobile terminal uses the same radio resources to establish a dedicated radio channel in the peer-to-peer communication with the other one of the mobile terminals, which were previously used by itself for communication with the network system on the dedicated uplink channel. In this way, the network system does not need to allocate additional radio resources for establishing the peer-to-peer communication, thus simplifying the radio resources re-allocation scheme, while ensuring that the quality of the channels is the same as tested.

公开(公告)号：EP1604495A2

公开(公告)日：2005-12-14

申请号：EP04715989.2

申请日：2004-03-01

申请人： Koninklijke Philips Electronics N.V.

发明人： JIA, Qunli,Philips Electronics China ,  SUN, Li,Philips Electronics China ,  MA, Ni,Philips Electronics China ,  ZHANG, Xuejun,Philips Electronics China ,  CHENG, Jiang,Philips Electronics China ,  PENG, Fang,Philips Electronics China

IPC分类号： H04L12/56

CPC分类号： H04W76/14

摘要： The present invention provides a wireless communication network system that maintains uplink control for the mobile terminal in peer-to-peer communication. According to one embodiment of the invention, after determining a reliable direct communication link can be set up between the mobile terminals, the network system transmits information including control commands to the mobile terminals for establishing direct communication. The information includes a burst structure type, with the burst structure containing at least one section for carrying control information intended for the network system. After the direct communication is established, the network system continuously listens to signals communicated between the mobile terminals to receive bursts. The network system demodulates received bursts that are communicated between the two mobile terminals to determine whether a received burst contains control information intended for the network system. If control information intended for the network system is included in a received burst, the network performs a corresponding function. In this way, the uplink control for the mobile terminals can be effectively maintained in peer-to-peer communication.

公开(公告)号：EP1604470A2

公开(公告)日：2005-12-14

申请号：EP04715990.0

申请日：2004-03-01

申请人： Koninklijke Philips Electronics N.V.

发明人： SUN, Li,Philips Electronics China ,  MA, Ni,Philips Electronics China ,  CHENG, Jiang,Philips Electronics China ,  JIA, Qunli,Philips Electronics China ,  ZHANG, Xuejun,Philips Electronics China ,  DU, Yonggang,Philips Electronics China

IPC分类号： H04B7/26 ,  H04Q7/38

CPC分类号： H04B7/2681 ,  H04W52/383 ,  H04W56/0045

摘要： A method is proposed for maintaining uplink synchronization with P2P communication in wireless communication networks, comprising steps of: the wireless communication system overhears the P2P communication between two UEs (user equipments), determines the SS (synchronization shift) information of said UEs according to the overheard information transferred by each UE in P2P communication, and transmits the SS information to the corresponding UE via the downlink common control channel; the UE monitors the downlink common control channel, and adjusts the TA (timing advance) for transmitting signals according to the SS information transferred via the downlink common control channel.

公开(公告)号：EP1579719A1

公开(公告)日：2005-09-28

申请号：EP03780458.0

申请日：2003-12-18

申请人： Koninklijke Philips Electronics N.V.

发明人： CHENG, Jiang,Philips Electronics China ,  MA, Ni,Philips Electronics China ,  ZHANG, Xuejun,Philips Electronics China

IPC分类号： H04Q7/36

CPC分类号： H04W16/14 ,  H04W24/00 ,  H04W72/1215 ,  H04W88/10

摘要： A wireless communication system, comprises a plurality of transceivers, receiving and transmitting RF signals (40); a plurality of RF processing units (60), processing said received signals or signals to be transmitted by said transceivers; RF resources allocator, detecting (90) information contained in received signals from a uplink on the types of different wireless communication schemes which are requested to access, and allocating (80) RF resources shared by said different wireless communications schemes according to said detected information.